[libc-commits] [libc] [libc] add shrink in-place support for reallocations (PR #200272)

[Schrodinger ZHU Yifan via libc-commits]

SchrodingerZhu wrote:

I have addressed the comments. For the reallocate testing, it now directly calculates allocation sizes based on portions without hardcoded values.

https://github.com/llvm/llvm-project/pull/200272